User Manual

page 29 of 51
• Check the power source and the pump’s rating plate
to be sure that the power source and the equipment
match in voltage, phase, and frequency.
Keep a minimum distance of 2 in (5 cm) between the cool-
ing fan (underside the pump) and surrounding items (e.g.,
housing, walls, etc.), or else install an external automatic
ventilation system.
Assemble silencer or hose nozzle at the outlet of the pump.
Attention: Use the silencer only in case of low gas through-
put. Check the silencer regularly for permeability!
Use connecting hoses with large diameter and keep them
as short as possible to avoid ow losses. Locate the pump
as closely as possible to the application.
Always install outlet tubing descending from the pump or
provide other measures to avoid backow of condensate
towards the pump.
Use a suitable valve to isolate the pump from the vacuum
application. This is to allow the pump to warm up before
pumping condensable vapors and to clean the pump after
use before it is switched off.
When assembling, ensure vacuum-tightness. After as-
sembly, check the whole system for leaks.
Secure hose connections at the pump appropriately, e.g.,
with hose clamps, to protect against accidental detach-
ment.
During operation
➨ Vent and dispose of potentially dangerous gases or
vapors at the outlet of the pump appropriately.
+ Due to the high compression ratio, the pump might
generate overpressure at the outlet. Check pressure
compatibility with system components (e.g., exhaust
NOTICE